On my new mail servers running Debian 13 and ISPC 3.3.1p1, using the automated installer I get rspamd and postgrey installed. From what I understand, rspamd does greylisting, and from what I read in at least other post in this forum, it is enabled by default and it is not wise to disable its greylisting module ( https://forum.howtoforge.com/threads/potentially-unwanted-greylisting.93504/ ). What I don't understand is whether rspamd is ONLY asking for redelivery of messages when it doubts the message is spam. If the answer is yes, then I understand this is a good thing. But, if rspamd's greylisting module asks for redelivery as postgrey does, I think there's a possibility of duplicating requests, isn't it? Could some please clarify to me how rspamd-greylist and postgrey peacefully coexist in ispconfig? Thanks in advance Ignacio